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题名: Anion Effects on Lanthanide(III) Tetrazole-1-acetate Dinuclear Complexes Showing Slow Magnetic Relaxation and Photofluorescent Emission
作者: Lu, Ying-Bing1, 2; Jiang, Xiao-Ming2; Zhu, Shui-Dong1; Du, Zi-Yi1; Liu, Cai-Ming3; Xie, Yong-Rong1; Liu, Liang-Xian1
刊名: INORGANIC CHEMISTRY
发表日期: 2016-04-18
卷: 55, 期:8, 页:3738-3749
收录类别: SCI
英文摘要: Three types of lanthanide complexes based on the tetrazole-l-acetic acid ligand and the 2,2'-bipyridine coligand were prepared and characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental analyses; the formulas of these complexes are [Ln(2)(1-tza)(4)(NO3)(2)(2,2'-bipy)(2)] (Ln = Sm (1), Eu (2), Gd (3), Tb (4), Dy (5)), [Dy-2(1-tza)(4)Cl-2(2,2'-bipy)(2)] (6), and [Yb-2(1-tza)(4)(NO3)(2)(2,2'-bipy)(2)] (7) (1-tza = tetrazole-l-acetate and 2,2'-bipy = 2,2'-bipyridine). They are dinuclear complexes possessing similar structures but different lanthanide(III) ion coordination geometries because of the distinction of peripheral anions (such as NO3- and Cl-) and the effect of lanthanide contraction. The variable-temperature magnetic susceptibilities of 1-6 were measured. Both Dy-III complexes (5 and 6) display field-induced single-molecule magnet behaviors. Ab initio calculations revealed that the Dy-III complex 6 possesses a more anisotropic Dy-III ion in comparison to that in 5. The room-temperature photoluminescence spectra of Sm-III (1), Eu-III (2), Tb-III (4), and Dy-III (5 and 6) complexes exhibit strong characteristic emissions in the visible region, whereas the Yb-III (7) complex shows near-infrared (NIR) luminescence.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36078
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Gannan Normal Univ, Coll Chem & Chem Engn, Jiangxi Key Lab Funct Mat Chem, Ganzhou 341000, Peoples R China
2.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
3.Chinese Acad Sci, Ctr Mol Sci, Beijing Natl Lab Mol Sci, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China
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